Montclair, San Bernardino County
Rekey Locks after Buying a House: What Montclair Buyers Should Cover
Short answer: Yes, you should rekey locks after buying a house, ideally on the day you take possession. Sellers, their relatives, agents, cleaners and contractors may all hold copies, and none of them have to give those back. Rekeying swaps the pins inside your existing cylinders so every old key stops working. Julian's Locksmith does it on site in Montclair; call (951) 903-3193.

Most buyers think about rekeying the front door and stop there. A house in Montclair usually has more keyed openings than that: a deadbolt and knob on the front, the door from the garage, a back or side door, maybe a slider with a keyed handle, a side gate padlock, the mailbox and a shed. Then there are the codes you can't see: keypad deadbolts, a smart lock tied to the seller's app account, and garage door remotes that may still be clipped to someone else's visor. A proper post-purchase rekey treats all of that as one project, and we'll walk the property with you to build the list.
What to expect in Montclair
It helps to be clear about what a rekey does and doesn't do. Rekeying changes who can operate a lock. It doesn't make the lock stronger, the door thicker or the frame harder to kick in. If the deadbolt on your new home is an entry-level Grade 3 model held by short strike screws in a soft jamb, fresh pins won't change how it handles a shoulder or a pry bar. That's why a good post-purchase visit looks past the cylinder. We check whether each exterior door has a deadbolt at all, whether the bolt fully extends into the strike, and whether the strike screws reach the stud behind the jamb rather than stopping in thin trim. We look at glass near each lock, since a pane within arm's reach of a thumbturn changes the advice. For buyers who want more than a key change, the next steps are clear: security pins that resist picking and bumping, Grade 1 or Grade 2 hardware on the main entry, reinforced strikes, and restricted keyways that stop copies from being cut at any hardware counter. None of it is required. We'll explain which upgrades suit your doors and budget, then rekey the rest.
What we can do on-site
- Gates, sheds and outbuildings. If your new property includes a detached garage, RV gate, pool equipment enclosure or tool shed, those locks share the same key-history problem. We bring them under your new key, or a second key for areas you want kept separate, such as a workshop you'd rather guests and contractors couldn't open.
- Mailbox lock change. A mailbox lock is a small cam lock, and the right replacement comes down to measurements: cylinder length, cam length and offset, and which direction the cam turns. We match those so the door closes flush and the cam catches the frame. On HOA-owned cluster boxes, we work only on the compartment the association confirms belongs to you.
- Lock condition check and upgrades. While each cylinder is out, we look at what most buyers can't see: worn pins, loose deadbolt screws, short strike screws, sticky latches and frames that don't line up. You get a straight answer on which locks are fine to rekey and which are worth replacing or upgrading, with a quote for each.
- Key control after the move. Once only your keys work, keep it that way. We can cut a counted set of copies, label which key goes to which area if you keep some separate, and suggest who should hold spares. For contractors and movers, a temporary key that we rekey out afterward avoids starting from scratch later.
- When the seller's keys don't fit. Sometimes the keys you were handed belong to a previous lock, not the current one. A seller swaps a deadbolt, forgets, and passes along the old key. Rather than guessing, we read the cylinder, cut a working key or re-pin it outright, and fold that door into your new keying plan during the same visit.
What's different about Montclair
Family neighborhoods mean school schedules, carpools and a lot of people who may have held the previous owner's keys: babysitters, grandparents, coaches dropping kids off. After you buy in Montclair Place District, rekeying gives you a clean slate before your own kids start getting keys. Many families pair it with a keypad deadbolt so children never carry a key that can be lost at school.
Older homes in Montclair often carry decades of key history: original knob locks, deadbolts added by a later owner, maybe a rim lock on a back door. Vintage cylinders can be stiff or corroded, and some original hardware isn't worth re-pinning. During a post-purchase rekey, we'll tell you which locks deserve new pins, which deserve retirement, and whether those older doors and frames will hold a modern deadbolt properly.
Long commutes shape how you rekey. Many buyers in Montclair leave before dawn and get home after dark, so the house sits empty most of the day. We start at 6:30 a.m. every day and work until 11:30 p.m. That makes a before-work or evening rekey realistic. Since the garage entry is often your everyday front door, that lock gets extra attention, and a keypad deadbolt can spare you a lockout at five in the morning.
Common situations
- Say you buy a newly built home and assume the locks are pristine. Builders often use construction keying, where the crew's key is supposed to quit working after your first key turns. A locksmith would test each cylinder with the construction key if one is available, confirm the change took, and rekey anything that didn't. It's a short visit that replaces assumption with certainty.
- Take a 1980s stucco home with a black steel security screen door over the front entry, keyed on both sides, plus a slider with a keyed handle. The sellers left one key for the screen door and none for the slider. In a case like this, we'd rekey the screen door to match the house, switch it to an inside thumbturn if the owners agree, and replace the slider cylinder.
- Consider a buyer who purchases a duplex near Montclair City Hall, moves into one side and inherits a tenant in the other. Their own unit can be rekeyed the day they take possession. The tenant's unit is different: a typical plan is giving proper written notice, rekeying at the agreed time, handing the tenant new keys on the spot, and confirming the main door has a working deadbolt.
- Imagine buying a home whose sellers had a Kwikset keypad deadbolt on the front and a Wi-Fi smart lock on the back door. The keypad still opens with their code, and the smart lock still shows up in their app. We'd clear every stored code, factory-reset the smart lock, pair it to your phone, and rekey both backup cylinders to your new key.
Step by step with Julian's Locksmith
- Book around your possession date. Rekeying works best on a known date. Give us your expected close of escrow and possession date, plus any contractor work planned before move-in. We'll suggest the right timing: immediately if the home is empty, or right after the rent-back ends or the remodel wraps up.
- Bring proof of ownership. Since your license won't show the new address yet, bring photo ID plus a closing statement, grant deed, escrow instructions or similar documents in your name. If the deed hasn't recorded yet, escrow paperwork showing the close is fine. We check this before touching any lock; it protects you as the new owner.
- Walk the property and count cylinders. We also try every key the sellers left in every lock. That quick test shows which locks the old ring actually operates, turns up doors nobody had a key for, and flags cylinders that were swapped years ago. While walking the perimeter, we keep an eye out for leftover lockboxes and hidden spares so you can remove them.
- Re-pin each cylinder. This is the hands-on part. Each lock comes apart, the old bottom pins come out, new pins go in to match your new key, and the springs and top pins are checked for wear. Worn springs or corroded pins get replaced rather than reused, especially on doors that bake in afternoon sun.
- Reset codes and test every key. Before we pack up, every door gets a full function test: the key turns smoothly, the deadbolt throws completely into the strike, and the latch catches when the door closes. Electronic locks get new codes and fresh batteries if needed. Anything that didn't pass gets fixed or flagged on the invoice for a follow-up.
- Hand over the keys and the record. Before we leave, we count the keys out with you and decide where each one goes. A spare belongs with a person you trust or in a lockable spot indoors, not under a mat or inside a fake rock. If you'll add locks later, hold on to the key code record so new hardware can match from day one.
How we quote the job
- Number of cylinders. Some hardware hides extra cylinders. A double-cylinder deadbolt has a keyway on both faces; a handleset may carry a keyed lever below its deadbolt; a keyed patio handle, garage-door T-handle or security screen door each adds one more. Doors you never use, like a sealed-off side entrance, can be left out of the quote if you prefer.
- Lock condition. Older hardware can fight back. Stripped screws, broken tailpieces and cylinders that won't release from the housing all add labor. Bargain locks from a hardware aisle sometimes cost more to service than to replace. We note the condition of each lock up front so the quote reflects what's actually on your doors.
- Scheduling and location. Planned rekeys are easier to schedule and price than emergencies. If you call a few days before closing, we can line up a visit that fits your moving plans and route it efficiently. A same-day request is often possible too, but evening slots before our 11:30 p.m. close fill quickly.
Every job gets a clear quote before any work starts. Call (951) 903-3193 with the details and we'll tell you what to expect for your situation in Montclair.
Common errors that cost time and money
- Assuming the sellers handed over every key. They gave you the keys they could find. Copies made years ago for a babysitter, a contractor or a neighbor are almost never accounted for, and lockbox access during the sale added more people. Rekeying is the only way to know the count is zero.
- Waiting until after moving in. Once your belongings are inside and life gets busy, rekeying slides down the list for weeks or months. Meanwhile, every old key still works. Book it for possession day; it's a short visit compared with everything else you're juggling that week.
- Replacing perfectly good locks when rekeying would do. If the hardware works smoothly and you like how it looks, new pins and keys solve the access problem for much less. Replacement makes sense for worn, damaged, low-grade or mismatched locks, or when you want a smart lock upgrade.
Advice before you book
- Ask the sellers to remove the property from their app accounts before closing: Wi-Fi garage controllers, video doorbells, smart thermostats and connected locks. If they can't or won't, factory reset each device after you take possession. A garage controller still tied to someone else's phone can raise the big door no matter which keys you hold.
- Factory-reset every smart lock instead of just deleting users in an app. A reset removes the previous owner's account access and any shared guest codes. Then set up your own account, create a strong master code and rekey the backup cylinder, since that key may still be sitting in someone's junk drawer.
- If you plan a remodel, give contractors a temporary key and plan to rekey once they're finished, or install a keypad lock whose code you can delete. Rekeying twice costs less than wondering how many copies a crew made, and good contractors won't be offended by it.
- Call the alarm company to change the master and user codes, and ask them to remove the previous owner's contact list. In HOA communities in Montclair, contact management to deactivate the seller's gate remotes or pool fobs and issue yours. These sit outside a locksmith's work but belong on the same checklist.
Service in Montclair
Montclair is about 29 miles from our San Bernardino base, roughly 36 minutes in light traffic via Belmont Ave and Palm Ave to I-215 North, I-15 South past Fontana and Rancho Cucamonga. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
Homes and businesses just off Moreno Street are routine stops for us. Give the suite or unit number and any gate instructions, and say whether the van can park out front or should pull into a side lot.
About Montclair: Montclair Place opened in 1968 as Montclair Plaza, took its current name in 2015, and today counts JCPenney, Macy's, an AMC dine-in theater and a Main Event among its tenants.
| Neighborhoods | Montclair Place District, Arrow Highway corridor, Kingsley Street area, North Montclair, Monte Vista Avenue corridor, Civic Center |
|---|---|
| ZIP codes | 91763 |
| Main routes | I-10, Central Avenue, Monte Vista Avenue, Mills Avenue |
| From our San Bernardino base | about 29 miles via Belmont Ave and Palm Ave to I-215 North, I-15 South past Fontana and Rancho Cucamonga, then I-10 West to the Monte Vista Avenue or Central Avenue exit; SR-210 West to Monte Vista Avenue, then south, for North Montclair |
Planning a rekey in Montclair?
Call (951) 903-3193 and tell us how many doors you want on the new key and the brand of the locks if you know it. We'll quote the rekey before any work starts.
Frequently asked questions
I bought a rental property with tenants living in it. Can I rekey their unit?
Yes, with the tenant's rights in mind. In California, a landlord generally needs to give reasonable written notice before entering, and 24 hours is presumed reasonable. Schedule the rekey for the agreed time, hand the tenant new keys right away and keep the owner's copy somewhere secure. Main entry doors on rental units must also have working deadbolts under Civil Code §1941.3.
Can I have the locks rekeyed before escrow closes?
Usually not. Until escrow closes and the deed records, the seller still owns the house, and we verify ownership before working on any lock. If your contract gives you early possession, bring that agreement plus the seller's written authorization and we can talk it through. Most buyers simply book the rekey for the day possession transfers, which avoids the question entirely.
How long does a whole-house rekey take?
It depends on the number of locks and their condition. A typical single-family home with several exterior doors usually takes part of a morning or afternoon, not a full day. Seized cylinders, mixed brands that need parts, smart lock resets and outbuildings add time. We'll give you a realistic estimate after the walk-through, before any work begins.
What do I need to show the locksmith to prove I own the house?
Photo ID plus a document tying you to the property: your final closing or settlement statement, the recorded grant deed, or escrow documents. Your license won't show the new address yet, which is normal. If the house is held in a trust or LLC, bring something showing you're authorized to act for it. We check this before working on any lock.
What about the mailbox on a newly purchased house?
Change it. Who does the work depends on ownership. For a standalone locking mailbox or a privately owned cluster box, the homeowner or HOA is responsible for the compartment lock, and we can replace it with new keys. Cluster boxes owned by the postal service get their locks changed through the local post office. If you're not sure which you have, ask your HOA or post office first.
The sellers didn't leave keys to every door. Can you still rekey?
Yes. Once we've confirmed you own the house, we can open most residential locks without damage by picking or decoding them, then re-pin them to your new key. Damaged or high-security cylinders occasionally need drilling, and we'll tell you before that happens. A missing key is a common closing-day problem, and it folds easily into a whole-house rekey.
How far is Montclair from your base?
Montclair is about 29 miles from our San Bernardino base, roughly 36 minutes in light traffic. Arrival time depends on traffic and on the job the technician is finishing, so we give you an estimate on the phone before you commit.
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